In the past few years I have seen a redefining of "what a radiation oncologist does" in some European countries.
I trained in delivering systemic therapy together with radiation therapy, but in the past years numerous clinics have given up their inpatient service and outsourced systemic treatment. This part remains part of the education curriculum for residents in some countries, but the trend is certainly downward.
Another interesting thing I have been observing is that medical oncologists increasingly become aware of when one can/should give RT and when not. I often get consults now "telling me what to do" more or less: "Please ablate this lesion", while earlier it used to be "Can you help you?".
I feel that the field is transforming more and more into a servives discipline, comparable to radiology (perhaps interventional radiology would be the best comparison?).
At the same time two major factors are transforming the way we work: AI and all the other non-physicians taking care of patients.
In a very pessimistic scenario, AI will do a lot of the stuff we do nowadays. Contouringis already happening. The "bastion" of plan evaluation is next. At the same time, non-physicians are taking multiple tasks we used to cover. I trained to provide palliative care, pain care, psychosocial support. All that is now covered by non-physicians, I just make phone calls.
The evolution of our field a complicated matter, some things are within our grasp to transform, other not.